Question

If x = 1 is a zero of the polynomial 3+ kx^2 + 2 ,find the value of k​

Answer 1

Answer:

f(x)=kx

2

−3kx+3k−1

If 1 is the zero of f(x), then f(1)=0

Thus,

f(1)=0

=>k(1)

2

−3k(1)+3(1)−1=0

=>k−3k+3−1=0

=>−2k+2=0

=>−2k=−2

=>k=1

Step-by-step explanation:

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Answer 2

$3 + {kx}^{2} + 2 = 0 \\ = > 3 + {k(1)}^{2} + 2 = 0 \\ = > 3 + k + 2 = 0 \\ = > 5 + k= 0 \\ = > k = - 5$